Spain's per capita income was 20,838 euros (25,797 U.S. dollars) in 2005, about 11 percent below the European Union's average of 23,400 euros (28,969 U.S. dollars), according to data published by Spain's National Statistics Institute (INE) on Wednesday.

The INE measured the per capita income by its gross domestic product (GDP) divided by population.

Seven Spanish regions' per capita income were higher than the national average. The leading one was Madrid with 27,279 euros (33,771 U.S. dollars), followed by Basque Country with over 26,500 euros (32,807 U.S. dollars).

The statistics for the Balearic Islands, La Rioja and Aragon were nearly 23,000 euros (28,474 U.S. dollars) while the region with the lowest income was Extremadura with just over 14,000 euros (17,332 U.S. dollars)per capita.